NGC 5177 is a lenticular galaxy. Based on a redshift of the galaxy is crudely estimated to be about 300 million light-years away. On April 16, 2010 UT, the Palomar Transient Factory automated wide-field survey detected a supernova on the outskirts of NGC 5177. The supernova is known as SN 2010cr and is located at 13:29:25.11 +11:47:46.4. A confirmation spectrum was taken with the Palomar Hale telescope on April 17 UT which showed it to be approximately 13 days before peak brightness. The Hubble Space Telescope took STIS/UV spectroscopic observations on May 3, 2010. See also List of supernovae History of supernova observation List of supernova remnants List of supernova candidates References External links 5177 Virgo (constellation) Lenticular galaxies